Second....the use of 'indigenous' is misleading.....
Now there I will fight you. Yes, we came here from Asia. But if that was tens of thousands of years prior. If that does not qualify, then I will step back even farther.
Many do not know this, but Primates originated in North America. during the Cretaceous Period. Where some made the move to South America and Africa, which were still conjoined. Where in Africa as we all know, primates evolved into Apes, then the Hominid branch. Meanwhile, over the millions of years they completely died out in North America and no primate species survived.
Therefore, technically North America is the "Original home" of Humans it could be said, and all of the rest of the continents they are the ones that moved in much later.
Or if you want to be more accurate, there are no indigenous people anywhere other than Central Africa. Europe, Asia, Australia, nowhere. In every single part of the globe no humans are indigenous if you have to stretch back 20,000 years and more to try and claim they do not belong where they are.